The integer vector intrinsic listed here is designed for the IntelŪ PentiumŪ 4 processor with Streaming SIMD Extensions 3 (SSE3).
The prototypes for these intrinsics are in the pmmintrin.h header file.
extern __m128i _mm_lddqu_si128(__m128i const *p);
Loads an unaligned 128-bit value. This differs from
movdqu in that it can provide higher performance
in some cases. However, it also may provide lower performance than movdqu if the memory value being read was just previously
r := *p;